Importers of HS 9027.90 (of instruments and apparatus of subheading 9027.20, 9027.30,) from Thailand actually paid 9.96% on the taxed portion of the value in 2026-06 — 1.77% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is Free. Over the window the rate on the taxed portion moved null% → 9.96%, with the largest single step +10.7pp in 2025-04. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is Free — importers actually paid 9.96%, so the trade-war overlay added 10 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "9027.90", origin: "Thailand") · see it at trimtabist.com/tariffs
HS 9027.90. The schedule base rate is Free; importers from Thailand actually paid 9.96% on the dutiable value in 2026-06 — the trade-war overlay added 10 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved % (2023-07) → 9.96% (2026-06), largest single step +10.7pp in 2025-04.
Thailand's lower duty (1.77% vs 33.32%) lets it price up to 31% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $49.6/kg vs $379.11/kg (duty in, freight out).
All goods from Thailand · the whole tariff ledger · 3 CBP rulings cite this code · reproduce: tariff_story(hs: "9027.90", origin: "Thailand") via /connect. Not customs or legal advice.